KR101531246B1 - Matching system between convective cell in weather radar image and lighting and control method thereof - Google Patents

Abstract

A system for matching a convective cell in a weather radar image to thunderstroke and a control method thereof are disclosed. The convective cell in a weather radar image to thunderstroke detects a convective cell in a weather radar image, detects thunderstroke through a thunderstroke observation system, and matches the detected thunderstroke with the detected convective cell of the convective cells in the weather radar image, thereby quickly and accurately matching and confirming the convective cell in which the thunderstroke is generated of the convective cells.

Description

TECHNICAL FIELD [0001] The present invention relates to a convective cell and a lightning matching system in a weather radar image,

The present invention relates to a convective cell and a lightning matching system in a weather radar image and a control method thereof, and more particularly to a method for detecting a convection cell in a weather radar image, detecting a lightning stroke through a new lightning observation system, The present invention relates to a convective cell and a lightning matching system in a weather radar image matching the detected lightning stroke among convective cells within a convective cell and a control method thereof.

A weather radar is a device that calculates the magnitude of a radio signal that is reflected or scattered on a meteorological target by emitting an electromagnetic wave. The weather radar is very fast (for example, every 10 minutes) And it is one of the remote sensing equipment which calculates the precipitation of a large area.

Such a weather radar detects convective cells in the surveillance area, and thus does not provide a means for identifying the convective cells that caused the lightning stroke among the corresponding convective cells.

Korean Registered Patent No. 10-0931950 [Title: Method of Classifying Precipitation Type of Weather Radar]

It is an object of the present invention to provide a method and system for detecting convective cells in a weather radar image, detecting a lightning stroke through a neodymium monitoring system and detecting convection in the meteorological radar image that matches the detected lightning in the detected meteorological radar image Cell and lightning matching system and a control method thereof.

The convective cell and lightning matching system in a weather radar image according to an embodiment of the present invention is a system in which a convective cell detected in a weather radar image matches a detected lightning stroke with a detected lightning stroke, A total lightning detection system (TLDS) for collecting data on lightning, analyzing data on the collected lightning strikes, and transmitting the analyzed lightning information; A weather radar center system for detecting one or more convective cells present in a radar image sensed via a weather radar and transmitting information about the detected one or more convective cells; And confirming whether or not there is a convection cell in which a lightning stroke ellipse boundary surface corresponding to the lightning stroke information overlaps the convection cell range included in the information on the transmitted at least one convection cell, Wherein the lightning strike light source is a lightning strike light source and the lightning strike light source is a lightning strike light source, have.

As an example related to the present invention, the new lightning observation system collects data on a lightning stroke generated through a TOA (Time Of Arrival) sensor, and based on the characteristics of the TOA sensor, It is possible to filter data having three or more lightning striking sensors among the lightening data corresponding to the lightning strike type and to transmit the filtered lightning striking information to the terminal.

The control method of the convective cell and the lightning matching system in the weather radar image according to the embodiment of the present invention is based on the control of the convective cell and the lightning matching system in the weather radar image matching between detected convection cells and detected lightning stroke in the weather radar image The method includes collecting data on a lightning stroke occurring through a new lightning observation system, analyzing data on the collected lightening stroke, and transmitting the analyzed lightening stroke information to the terminal. Detecting one or more convective cells present in the sensed radar image through the weather radar center system and transmitting information about the detected one or more convective cells to the terminal; Confirming whether or not there is a convective cell overlapping the elliptical boundary surface of the lightning stroke corresponding to the lightning striking information among the convection cell range included in the information on the transmitted at least one convective cell through the terminal; And when it is determined through the terminal that convection cells overlapping the elliptical boundary surface of the lightning stroke corresponding to the lightning striking information are present in the at least one convection cell range as a result of the determination, And matching the overlapped lightening information and the convective cells with each other.

In one embodiment of the present invention, the step of detecting one or more convection cells present in the sensed radar image includes: generating a 3D CAPI (Constant Altitude Plan Position Indicator) through the weather radar center system; And identifying the reflector cell associated with the hazardous weather, via the weather radar center system.

As one example related to the present invention, the process of generating the three-dimensional CAPPI includes: a process of collecting radar reflectivity data; Displaying the collected radar reflectivity data as radar volume data on a polar coordinate system; And performing coordinate transformation on the radar volume data.

In one embodiment of the present invention, the process of identifying the reflector cell associated with the hazardous gas may include discriminating all lattice points having a reflectance exceeding a preset reflectivity threshold from the three-dimensional radar reflectivity data, Assigning individual identification numbers to lattice points; A step of searching x and y coordinates of all lattice points to discriminate lattice points having the same y coordinate and adjacent to an x coordinate as a one-dimensional component, and assigning an identification number to the determined one-dimensional component; Searching for y coordinates of all one-dimensional components and determining one-dimensional components adjacent to y coordinates as two-dimensional components; Searching all the two-dimensional components in the z direction, which is the vertical direction, and determining the two-dimensional components having z coordinates as the three-dimensional reflection cells; Determining whether there is a value smaller than the volume threshold among the three-dimensional radar reflectivity cells; Dimensional component having a volume smaller than the volume threshold is excluded from the final discrimination as a result of the checking; As a result of the verification, when there is a three-dimensional component having a volume greater than or equal to the volume threshold, a three-dimensional component having a volume greater than or equal to the volume threshold is projected on an xy plane to detect the two- Detecting a three-dimensional reflector cell corresponding to a three-dimensional component having a large or equal magnitude as convective cells; Calculating three-dimensional property information and two-dimensional property information from the three-dimensional reflection cell and the two-dimensional reflection cell; And displaying the Cmax (Maximum Maximum) and storm 2D images based on the detected convection cells and the calculated property information.

The present invention relates to a method for detecting a convected cell in a weather radar image, detecting a lightning stroke through a new lightning observation system, and matching the detected lightning stroke among the convection cells in the detected weather radar image, It is possible to quickly and accurately match and confirm the lightning-induced convection cells.

1 is a block diagram illustrating a configuration of a convective cell and a lightning matching system in a weather radar image according to an embodiment of the present invention.
2 is a cross- FIG. 4 is a diagram illustrating data on collected lightning strikes according to an embodiment of the present invention.
3 is a flowchart illustrating a process of generating a 3-dimensional CAPPI according to an embodiment of the present invention.
4 is a flowchart illustrating a process of identifying a reflector cell associated with a hazardous gas according to an embodiment of the present invention.
5 is a block diagram illustrating a configuration of a terminal according to an embodiment of the present invention.
6, FIG. 3 is a flowchart illustrating a method of controlling a convective cell and a lightning matching system in a weather radar image according to an exemplary embodiment of the present invention. FIG.
FIG. 7 is a view illustrating data on a plurality of collected lightning strikes according to an embodiment of the present invention. FIG.
8 is a diagram illustrating analyzed lightning information according to an embodiment of the present invention.
Figure 9 is a diagram illustrating information about one or more detected convective cells according to an embodiment of the present invention.
FIGS. 10 and 11 are views illustrating a screen of a terminal for confirming overlap between a convection cell and a lightning stroke according to an embodiment of the present invention.

It is noted that the technical terms used in the present invention are used only to describe specific embodiments and are not intended to limit the present invention. In addition, the technical terms used in the present invention should be construed in a sense generally understood by a person having ordinary skill in the art to which the present invention belongs, unless otherwise defined in the present invention, Should not be construed to mean, or be interpreted in an excessively reduced sense. In addition, when a technical term used in the present invention is an erroneous technical term that does not accurately express the concept of the present invention, it should be understood that technical terms that can be understood by a person skilled in the art can be properly understood. In addition, the general terms used in the present invention should be interpreted according to a predefined or prior context, and should not be construed as being excessively reduced.

Furthermore, the singular expressions used in the present invention include plural expressions unless the context clearly dictates otherwise. The term "comprising" or "comprising" or the like in the present invention should not be construed as necessarily including the various elements or steps described in the invention, Or may further include additional components or steps.

Furthermore, terms including ordinals such as first, second, etc. used in the present invention can be used to describe elements, but the elements should not be limited by terms. Terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or similar elements throughout the several views, and redundant description thereof will be omitted.

In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail. It is to be noted that the accompanying drawings are only for the purpose of facilitating understanding of the present invention, and should not be construed as limiting the scope of the present invention with reference to the accompanying drawings.

FIG. 1 is a block diagram showing a configuration of a convective cell and a lightning-matching system 10 in a weather radar image according to an embodiment of the present invention.

As shown in FIG. 1, a convective cell and a lightning-matching system 10 in a weather radar image includes a new lightning observation system 100, a weather radar center system 200, and a terminal 300. Both the components of the convective cells in the weather radar image shown in Figure 1 and the components of the lightning matching system 10 are not mandatory components and the convective cells in the meteorological radar image by more components than the components shown in Figure 1 A lightning-matching system 10 may be implemented, or a lightning-fast matching system 10 may be implemented by a lesser number of components in a weather radar image.

The TLDS 100 is a system for objectively and quantitatively observing the lightning phenomenon.

In addition, when a lightning stroke occurs, the lightning strike observation system 100 detects the lightning stroke generated.

That is, the new lightning observation system 100 collects (or senses / measures) lightning strikes generated through a TOA (Time Of Arrival) sensor (not shown).

For example, as shown in FIG. 2, the new lightning observation system 100 collects data on a lightning stroke through the TOA sensor. CE1 denotes the length of the semi-major axis of the confidence ellipse, CE2 denotes the length of the semi-minor axis of the confidence ellipse, CEI (confidence ellipse angle) represents the confidence ellipse angle in the north direction, and CHI represents the chi-square value of the stroke (chi-square) value, NRS represents the number of reported sensors, T represents the type of lightning "C" for the cloud, and the type of lightning "G" for the cloud-ground.

In addition, the new lightning observation system 100 analyzes data on the collected lightning strikes. At this time, the new lightning-strike observation system 100 determines that the number of sensors (or NRS) of the lightning phenomenon is 3 or more among the cloud-ground lightning materials indicated by the lightning data type G based on the characteristics of the TOA sensor (Or filter) the received signal. In addition, the new lightning observation system 100 may exclude a positive lightning stroke in which the current is less than a predetermined value (for example, 10 kA) in the cloud-ground discharge.

Further, the new lightning observation system 100 transmits the analyzed (or detected) lightening information to the terminal 300.

The weather radar center system 200 detects one or more convective cells present in a radar image (photographed / collected / observed / detected) sensed via a weather radar (not shown).

That is, the weather radar center system 200 generates a three-dimensional Constant Altitude Plan Position Indicator (CAPPI) and identifies a reflector cell (or a reflector cell) associated with the dangerous vapor. At this time, the step of generating the 3D CAPPI is a step of performing coordinate conversion of the radar reflectivity data. In addition, the step of identifying the reflector cell associated with the hazardous gas may include detecting a convective cell (or convective storm) in the coordinate-transformed three-dimensional CAPPI data, quantifying the property of the detected convected cell, to be.

Here, the process of generating the three-dimensional CAPPI is performed as shown in FIG.

The weather radar center system 200 acquires radar reflectivity data (S310).

In addition, the weather radar center system 200 displays the collected radar reflectivity data as radar volume data on a polar coordinate system (S320).

Also, the weather radar center system 200 performs coordinate transformation on the radar volume data. That is, the weather radar center system 200 converts the radar volume data displayed on the polar coordinate system into a three-dimensional reflection field of the orthogonal coordinate system (S330).

Accordingly, the weather radar center system 200 generates three-dimensional CAPPI (or lattice) data.

Also, the process of identifying the reflector cells associated with the dangerous gas phase is performed as shown in FIG.

The meteorological radar center system 200 is a three-dimensional CAPPI that identifies a one-dimensional component, a two-dimensional component, and a three-dimensional component (Storm 3D) in a lattice point element, . At this time, the discrimination of the lattice point component uses a predetermined reflectivity threshold value.

That is, the weather radar center system 200 discriminates all lattice points having reflectivity exceeding the reflectance threshold from the three-dimensional radar reflectivity data, and assigns an individual identification number to all the discriminated lattice points And determines the element (S410).

The weather radar center system 200 searches the x and y coordinates of all the lattice points to discriminate lattice points having the same y coordinate and adjacent to the x coordinate as one-dimensional components, Identification numbers are assigned to the components (S420).

In addition, the weather radar center system 200 searches the y coordinates of all one-dimensional components to determine one-dimensional components adjacent to y coordinates as a two-dimensional component (S430).

The weather radar center system 200 searches all the two-dimensional components in the z direction (or the vertical direction) to obtain two-dimensional components whose z coordinates are adjacent to each other as a three-dimensional component (Storm 3D) Dimensional reflection cell (S440).

In this manner, the weather radar center system 200 can calculate a predetermined threshold value (for example, a predetermined threshold value) to discriminate a reflection cell (or a convection cell) associated with a dangerous weather (for example, a thunderstorm, a hail, a threshold method is used. In an embodiment of the present invention, the reflectance threshold and the volume threshold are used to discriminate the convective cells.

In addition, the weather radar center system 200 performs filtering based on a volume threshold preset for the three-dimensional radar reflectivity cell.

That is, the weather radar center system 200 determines (or discriminates / filters) whether there is a value smaller than the volume threshold among the three-dimensional radar reflectivity cells (S450).

If there is a three-dimensional component (Storm 3D) having a volume smaller than the volume threshold, the weather radar center system 200 excludes the three-dimensional component having a volume smaller than the volume threshold from the final determination (S460) .

As a result, when there is a three-dimensional component having a volume greater than or equal to the volume threshold, the weather radar center system 200 projects the corresponding three-dimensional component onto the xy plane to generate a two-dimensional reflection cell (Storm 2D) Detect.

That is, the weather radar center system 200 converts the determined three-dimensional component (Storm 3D) into a two-dimensional reflection cell by projecting the two-dimensional x, y plane, and displays the converted two-dimensional reflection cell. At this time, the three-dimensional reflector cell having a volume larger than the volume threshold is detected as convective cells, and the two-dimensional reflector cell is displayed as an ellipse (S470).

The weather radar center system 200 also includes three-dimensional property information (e.g., three-dimensional center position, volume, maximum reflectance, average reflectivity, altitude and position of the maximum reflectivity, etc.) from the three-dimensional reflector cell and the two- ), And two-dimensional property information (e.g., area, center position, length of major and minor axes of representative ellipse, slope of major axis, vertical integral liquid water content, vertical integral liquid water content density, ) To provide quantitative numerical information (S480).

Also, the weather radar center system 200 displays the CMAX (Climate Maximum) and storm 2D images based on the detected convection cells and the calculated property information. Here, the CMAX image represents only the strongest echo portion on the plane in each column of the volume observation data (S490).

In this manner, the weather radar center system 200 can perform the filtering of the identified three-dimensional reflection cells, the conversion to the two-dimensional reflection cells, and the calculation of the respective attribute information from the two- and three- It is possible to calculate the property of the three-dimensional reflectance cell.

In addition, the weather radar center system 200 transmits information on the detected at least one convection cell to the terminal 300.

The terminal 300 may be a smart phone, a portable terminal, a mobile terminal, a personal digital assistant (PDA), a portable multimedia player (PMP) terminal, a telematics terminal, A portable terminal, a navigation terminal, a personal computer, a notebook computer, a slate PC, a tablet PC, an ultrabook, a wearable device (for example, a watch type A smart TV, a digital broadcasting terminal, an AVN (Audio Video Navigation) terminal, a digital broadcasting terminal, a digital video broadcasting terminal, An audio / video (A / V) system, a flexible terminal, and the like.

5, the terminal 300 includes a communication unit 310, a storage unit 320, a display unit 330, and a control unit 340. Not all of the components of the terminal 300 shown in Fig. 5 are essential components, and the terminal 300 may be implemented by more components than the components shown in Fig. 5, The terminal 300 may be implemented.

The communication unit 310 communicates with at least one terminal of an external arbitrary component or an external terminal through a wired / wireless communication network. At this time, the external arbitrary terminal may include a new lightning observation system 100, a weather radar center system 200, and the like. Herein, as a wireless Internet technology, a wireless LAN (WLAN), a wireless broadband (Wibro), a WiMAX (World Interoperability for Microwave Access), HSDPA (High Speed Downlink Packet Access) , Long Term Evolution (LTE), Wireless Mobile Broadband Service (WMBS), and the like. In addition, the short distance communication technology may be Bluetooth, Wi-Fi, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra Wideband (UWB), ZigBee For example, Near Field Communication (NFC), Ultra Sound Communication (USC), Visible Light Communication (VLC), and Bluetooth Low Energy (BLE). The wired communication technology may include a power line communication (PLC), a USB communication, an Ethernet, a serial communication, an optical / coaxial cable, and the like.

Also, the communication unit 310 can transmit information to the terminal through a universal serial bus (USB).

Also, the communication unit 310 receives the analyzed lightening information transmitted from the new lightning observation system 100.

Also, the communication unit 310 receives information on the detected one or more convection cells transmitted from the weather radar center system 200.

The storage unit 320 stores various user interfaces (UI), a graphical user interface (GUI), and the like.

Also, the storage unit 320 stores data and programs necessary for the terminal 300 to operate.

The storage unit 320 may be a flash memory type, a hard disk type, a multimedia card micro type, a card type memory (for example, SD or XD A random access memory (SRAM), a read-only memory (ROM), an electrically erasable programmable read-only memory (EEPROM), a magnetic random access memory And a PROM (Programmable Read-Only Memory). In addition, the terminal 300 may operate a web storage that performs a storage function of the storage unit 320 on the Internet, or may operate in association with the web storage.

The storage unit 320 stores the analyzed lightning information received through the communication unit 310, information on the detected one or more convection cells, and the like.

The display unit 330 can display various contents such as various menu screens by using the user interface and / or graphical user interface stored in the storage unit 320 under the control of the controller 340. Here, the content displayed on the display unit 330 includes various text or image data (including various information data) and a menu screen including data such as an icon, a list menu, and a combo box. Also, the display unit 330 may be a touch screen.

The display unit 330 may be a liquid crystal display (LCD), a thin film transistor-liquid crystal display (TFT LCD), an organic light-emitting diode (OLED) And may include at least one of a flexible display, a 3D display, an e-ink display, and an LED (Light Emitting Diode).

In addition, the display unit 330 displays the analyzed lightening information received through the communication unit 310 under control of the controller 340, information on the detected at least one convection cell, and the like.

The control unit 340 executes the overall control function of the terminal 300. [

In addition, the controller 340 determines whether or not there is a convection cell in which the elliptical boundary of the lightning stroke corresponding to the lightning information is overlapped (or included) among the convection cell range included in the information on the received at least one convection cell (Or judged). In the case of the lightning stroke, the controller 340 uses the central position, long axis, short axis and long axis rotation angle projected in two dimensions in the case of the convection cell (or the convection cell) It uses short axis and elliptical angle.

When there is a convection cell in which the elliptical boundary surface of the lightning stroke corresponding to the lightning strike information is overlapped among the at least one convection cell range, the control unit (340) It is determined that the lightning is generated from the corresponding convection cells overlapping each other, and the corresponding lightening information (or the lightning stroke corresponding to the lightening information) is matched with the corresponding convection cell.

In addition, the controller 340 stores the matched lightning information and the information on the convective cells in the storage unit 320. At this time, the controller 340 accumulates the number of times of occurrence of a lightning stroke in units of convective cells, and stores the accumulated number of times of occurrence of a lightning stroke in the storage unit 320. In addition, the controller 340 displays the number of times of the occurrence of the lightning stroke in the cumulative convective cell unit on the display unit 330.

If it is determined that there is no convective cell in which the lightning strike's elliptic boundary corresponding to the lightning striking information overlaps among the at least one convective cell range, the control unit 340 determines that the lightning stroke has occurred in the at least one convective cell range It is judged that it has not occurred.

Thus, the convective cells can be detected in the weather radar image, the lightning stroke can be detected through the new lightning observation system, and the detected lightning stroke can be matched among the convection cells in the detected weather radar image.

Hereinafter, a method of controlling a convective cell and a lightning matching system in a weather radar image according to the present invention will be described in detail with reference to FIGS. 1 to 11. FIG.

6, FIG. 3 is a flowchart illustrating a method of controlling a convective cell and a lightning matching system in a weather radar image according to an exemplary embodiment of the present invention. FIG.

First, upon occurrence of a lightning stroke, the new lightning observation system 100 detects the lightning stroke generated.

That is, the new lightning observation system 100 collects data on a lightning stroke occurring. In addition, the new lightning observation system 100 analyzes data on the collected lightning strikes.

Further, the new lightning observation system 100 transmits the analyzed (or detected) lightening information to the terminal 300.

For example, as shown in FIG. 7, the new lightning observation system 100 collects data on a plurality of lightning strikes occurring for a preset period of time (for example, 10 months) Analyze the data.

Also, as shown in FIG. 8, the new lightning observation system 100 transmits the analyzed lightening information to the terminal 300 (S610).

Thereafter, the weather radar center system 200 detects one or more convective cells present in the radar image (photographed / collected / observed / detected) sensed via a weather radar (not shown).

In addition, the weather radar center system 200 transmits information on the detected at least one convection cell to the terminal 300.

For example, as shown in FIG. 9, the weather radar center system 200 detects one or more convection cells present in the radar image sensed through the weather radar, and detects information on the detected one or more convection cells To the terminal 300 (S620).

Thereafter, the terminal 300 receives the analyzed lightening information transmitted from the new lightning observation system 100.

Also, the terminal 300 receives information on the detected one or more convection cells transmitted from the weather radar center system 200.

Also, the terminal 300 determines whether or not there is a convection cell in which the elliptical boundary surface of the lightning stroke corresponding to the lightning information is overlapped (or included) among the convection cell range included in the information on the received at least one convection cell (Or judged).

For example, as shown in FIGS. 10 and 11, the terminal 300 determines whether the convection cell ranges 1011, 1012, and 1013 and the lightning strokes 1021 and 1022 overlap with each other (S630).

If there is a convection cell in which the elliptical boundary surface of the lightning stroke corresponding to the lightning striking information overlaps in the at least one convection cell range, the terminal (300) It is determined that the lightning is generated from the corresponding convection cells overlapping each other, and the corresponding lightening information (or the lightning stroke corresponding to the lightening information) is matched with the corresponding convection cell.

In addition, the terminal 300 stores information on the matched lightning information and convection cells. At this time, the terminal 300 may accumulate, store, and display the number of times that a lightning stroke occurs in units of convection cells.

10, when the convective cell range 1011 overlaps with the lightning stroke 1021, the terminal 300 determines that the lightning stroke 1021 is in the convective cell range 1011 (S640), and the information about the matched convection cell and the lightning stroke is stored (S640).

As a result of the checking, if there is no convective cell in which the lightning strike's elliptic boundary surface corresponding to the lightning striking information overlaps among the at least one convective cell range, the terminal (300) It is judged that it has not occurred.

11, when the lightning stroke 1022 does not overlap with the convection cell range 1012, 1013, the lightning stroke 1022 is generated in the convection cell range 1012, 1013 (S650).

Embodiments of the present invention provide a method for detecting a lightning stroke in a weather radar image, detecting a lightning stroke through a new lightning observation system, detecting the detected lightning stroke among the convection cells in the detected weather radar image, And matched, it is possible to quickly and accurately match and confirm the lightning-induced convection cells among a plurality of convection cells.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or essential characteristics thereof. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

The present invention relates to a method for detecting a convected cell in a weather radar image, detecting a lightning stroke through a new lightning observation system, and matching the detected lightning stroke among the convection cells in the detected weather radar image, It can quickly and accurately match and confirm the lightning-induced convective cells, which can be widely used in the fields of convective cell detection, storm prediction, and weather forecasting.

10: Convective cell and lightning matching system in weather radar image
100: New lightning observation system 200: Weather radar center system
300: terminal 310:
320: storage unit 330: control unit
340:

Claims (6)

A convective cell and a lightning matching system in a weather radar image matching a detected lightning stroke in a meteorological radar image,
Collects data on the generated thunderstorms and analyzes cloud-ground thunderstorm data excluding the positive thunderstorms whose current is less than a predetermined value in the cloud-ground discharge among the data on the collected thunderstorms, Total Lightning Detection System (TLDS);
A weather radar center system for detecting one or more convective cells present in a radar image sensed via a weather radar and transmitting information about the detected one or more convective cells; And
And determining whether or not there is a convection cell in which an elliptical boundary surface of a lightning stroke corresponding to the lightning stroke information overlaps the convection cell range included in the information on the transmitted at least one convection cell, When the lightning strike of the lightning strike corresponds to the lightning strike information, the overlapping lightning stroke is determined to be generated from the convection cells overlapping each other, and the overlapped lightening information and the convection cell are matched, And a terminal for accumulating the number of occurrences,
The weather radar center system comprises:
All the lattice points having a reflectivity exceeding a preset reflectivity threshold are discriminated from the 3D radar reflectivity data and the x and y coordinates of the entire lattice points are searched to find the lattice points having the same y coordinate and the x coordinate Dimensional components are searched to find the y-coordinates of all the one-dimensional components, the one-dimensional components adjacent to the y-coordinate are determined as two-dimensional components, and all the two-dimensional components are searched in the z- Dimensional radar reflector cell to determine whether there is a value smaller than a predetermined volume threshold value among the three-dimensional radar reflectivity cells, and if it is determined that the three- Dimensional component is detected as a two-dimensional reflection cell by projecting a three-dimensional component having a volume greater than or equal to the volume threshold, Detecting three-dimensional reflection cells corresponding to three-dimensional components having a volume greater than or equal to the threshold value as convection cells, calculating three-dimensional property information and two-dimensional property information from the three-dimensional reflection cells and the two- The convective cells and the lightning matching system in a weather radar image are identified by CMAX (Clommin Maximum) and storm 2D images based on the detected convection cells and the calculated property information. The method according to claim 1,
The terminal,
In the case of the convective cells, the center position, long axis, short axis and long axis rotation angle projected in two dimensions, and in the case of the lightning stroke, are included in the information on the at least one convection cell based on the center position, long axis, short axis and ellipse angle of the lightning stroke Wherein the lightning arrester is configured to determine whether or not there is a convection cell in which the elliptical boundary surface of the lightning stroke corresponding to the lightening information is overlapped. A method of controlling a convective cell and a lightning matching system in a weather radar image matching a detected lightning stroke in a meteorological radar image,
We collected data on the lightning strikes through the new lightning observation system and analyzed the cloud - ground lightning data except the positive thunderstorms whose current is below the preset value in the cloud - ground discharge, Transmitting the analyzed lightning information to the terminal;
Detecting one or more convective cells present in the sensed radar image through the weather radar center system and transmitting information about the detected one or more convective cells to the terminal;
Confirming whether or not there is a convective cell overlapping the elliptical boundary surface of the lightning stroke corresponding to the lightning striking information among the convection cell range included in the information on the transmitted at least one convective cell through the terminal; And
When it is determined through the terminal that convection cells overlapping the elliptical boundary surface of the lightning stroke corresponding to the lightening information are present in the at least one convection cell range, And a step of matching the overlapping lightning information and the convection cells and accumulating the number of lightning occurrences in units of convection cells,
Wherein the step of detecting one or more convective cells present in the sensed radar image comprises:
Generating a three-dimensional Constant Altitude Plan Position Indicator (CAPPI) through the weather radar center system; And
Identifying a reflector cell associated with a hazardous atmosphere through the weather radar center system,
The process of identifying the reflector cell associated with the hazardous atmosphere comprises:
Discriminating all lattice points having a reflectance exceeding a predetermined reflectivity threshold from the three-dimensional radar reflectivity data, and assigning an individual identification number to all the discriminated lattice points;
A step of searching x and y coordinates of all lattice points to discriminate lattice points having the same y coordinate and adjacent to an x coordinate as a one-dimensional component, and assigning an identification number to the determined one-dimensional component;
Searching for y coordinates of all one-dimensional components and determining one-dimensional components adjacent to y coordinates as two-dimensional components;
Searching all the two-dimensional components in the z direction, which is the vertical direction, and determining the two-dimensional components having z coordinates as the three-dimensional reflection cells;
Determining whether a value of the three-dimensional radar reflectivity cell is smaller than a predetermined volume threshold;
Dimensional component having a volume smaller than the volume threshold is excluded from the final discrimination as a result of the checking;
As a result of the verification, when there is a three-dimensional component having a volume greater than or equal to the volume threshold, a three-dimensional component having a volume greater than or equal to the volume threshold is projected on an xy plane to detect the two- Detecting a three-dimensional reflector cell corresponding to a three-dimensional component having a large or equal magnitude as convective cells;
Calculating three-dimensional property information and two-dimensional property information from the three-dimensional reflection cell and the two-dimensional reflection cell; And
And displaying the CMAX and storm 2D images on the basis of the detected convection cells and the calculated property information, and controlling the convective cells and the lightning matching system in the weather radar image. delete The method of claim 3,
Wherein the step of confirming whether or not the convective cells overlapping the elliptical boundary surface of the lightning stroke corresponding to the lightning striking information among the convective cell ranges included in the information on the transmitted at least one convective cell,
In the case of the convective cells, the center position, long axis, short axis and long axis rotation angle projected in two dimensions, and in the case of the lightning stroke, are included in the information on the at least one convection cell based on the center position, long axis, short axis and ellipse angle of the lightning stroke And determining whether or not there is a convection cell in which the elliptical boundary surface of the lightning stroke corresponding to the lightning striking information overlaps the convective cell in the range of the convective current. delete

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